Clifford Replacement Windows and Siding Inc., is a family owned and operated company. Established by Tim Clifford, Sr. and Tim Clifford, Jr. in 1963, Clifford uses only the best thermal windows, siding, soffit, facia and doors for all remodeling projects. We bring exclusive custom products from the top manufactures in the country, into homes throughout Illinois. The top manufacturers that we use include Republic Windows and Doors, Inc., Thermal Industries, and Alside. Being a service-oriented company, we pride ourselves on customer satisfaction, and we are committed to keeping our customers happy for years to come.

Our products are engineered for performance, and designed to delight the eye. When you choose Clifford Replacement Windows, you get much more than lasting beauty – you get durable, easy to clean vinyl windows that are virtually maintenance free. Manufactured with your comfort and convenience in mind, all Clifford windows feature energy efficient insulated glass, and are backed by a lifetime warranty.

Available in styles ranging from traditional double hungs to decorative bow and bay windows, there is something that is sure to satisfy your taste and budget. With so many styles and options you can easily transform your home into a true classic beauty. Go from ordinary to distinctive – your only limitation is your imagination.
While Clifford windows are certainly beautiful, it is also essential that they are energy efficient, to save you money on energy bills and to keep your home quieter and more comfortable year-round. Of course, the key ingredient in a window is glass. Have you ever considered that a full 80%
of your window is glass? The right glass can make a sigificant contribution to your window’s perfomance.